Welcome to Sonic Light

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Sonic Light is the original and most up-to-date source for Dr. Thomas L. Constable’s Expository Notes. These popular Bible Study Notes are known throughout the world and are currently being translated into many languages.

Thanks for being a part of Sonic Light; we look forward to many more years with you.


Below is a summary of the latest blog posts. Click on the title of a post to read it or click here to go to the Blog page.

  • What Happened to Genesis 27?

    In 1984, Dr. Constable taught through the book of Genesis at Plano Bible Chapel. Each lesson was recorded on a cassette tape and stored in a tape library. Around 1995, I started to digitize those audio lessons so they could be preserved—they are still available today here. However, Genesis 27 was missing. Was the cassette tape…

  • Sonic Light on YouTube

    Sonic Light now has a channel on YouTube. I’ve recently re-mastered Dr. Constable’s study on the Book of Revelation and also added the remaining lessons of Dr. VanDine’s study on the Book of Ecclesiastes. You can find Dr. Constable’s and Dr. VanDine’s lessons here:  https://www.youtube.com/@sonic_light/playlists Please consider subscribing to our channel; this will help Sonic Light have more visibility…

  • Introduction to Constable Notes

    If you’re not aware of Dr. Constable’s Introduction to his notes, you can find it here: Constable Notes Introduction. This introduction contains the following sections: I encourage you to visit the Constable Notes Introduction page to get the most out of Dr. Constable’s notes. Ted